Average Global Temperature?

Journey to Perplexity

average

In the debate over global warming (anthropogenic global warming – AGW – being the type people think is caused by burning fossil fuels) there is often discussion about the global temperature, or the mean global temperature, or the average global temperature.  We all know what that means, right?  If you don’t know what an average is, go here, where I cribbed this nifty graphic.

Anyway, the argument is that the average temperature of the globe is rising, and that the cause is our use of carbon-based energy, which releases CO2, a green house gas, into the atmosphere. For a long time now, I’ve been mulling over this idea of average global temperature.  I put a query to Watts Up With That, thinking I might get some critical info on it [my comment at (06:24:57) ] but the response only partly satisfied me.

Simply put, if you…

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